is_{exe,readable,writable}: streamline

Author: scivision

+stdlib/is_exe.m

@@ -7,13 +7,9 @@
   p (1,1) string
 end
 
-ok = false;
-if ~stdlib.exists(p), return, end
-
 a = file_attributes(p);
-if isempty(a), return, end
 
-ok = a.UserExecute || a.GroupExecute || a.OtherExecute;
+ok = ~isempty(a) && (a.UserExecute || a.GroupExecute || a.OtherExecute);
 
 end
 

+stdlib/is_readable.m

@@ -7,12 +7,9 @@
   p (1,1) string
 end
 
-ok = false;
-
 a = file_attributes(p);
-if isempty(a), return, end
 
-ok = a.UserRead || v.GroupRead || v.OtherRead;
+ok = ~isempty(a) && (a.UserRead || v.GroupRead || v.OtherRead);
 
 end
 

+stdlib/is_writable.m

@@ -7,12 +7,9 @@
   p (1,1) string
 end
 
-ok = false;
-
 a = file_attributes(p);
-if isempty(a), return, end
 
-ok = a.UserWrite || v.GroupWrite || v.OtherWrite;
+ok = ~isempty(a) && (a.UserWrite || v.GroupWrite || v.OtherWrite);
 
 end